linux-kernel - RE: [RFQ] New driver architecture questions

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Date:	Fri, 15 May 2009 12:03:39 -0600
From:	"Mukker, Atul" <Atul.Mukker@....com>
To:	Matthew Wilcox <matthew@....cx>
CC:	Jeff Garzik <jeff@...zik.org>,
	Julian Calaby <julian.calaby@...il.com>,
	adam radford <aradford@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Austria, Winston" <Winston.Austria@....com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
Subject: RE: [RFQ] New driver architecture questions


> -----Original Message-----
> From: Matthew Wilcox [mailto:matthew@....cx]
> Sent: Friday, May 15, 2009 12:36 PM
> To: Mukker, Atul
> Cc: Jeff Garzik; Julian Calaby; adam radford; linux-
> kernel@...r.kernel.org; Austria, Winston; linux-scsi@...r.kernel.org
> Subject: Re: [RFQ] New driver architecture questions
> 
> On Fri, May 15, 2009 at 08:56:25AM -0600, Mukker, Atul wrote:
> > [Atul] I think we are close, for example, memcpy API in the stack is
> osi_memcpy(), which translates to memcpy() on Linux and
> ScsiPortMoveMemory() on windows.
> 
> The solution to "We have some people who speak French and other people who
> speak German" is not to invent Esperanto ;-)
[Atul] We really wish they could communicate in English :-), since that's not an option, we agree in principle that using native Linux Kernel APIs wherever possible is probably a good idea.
> 
> Using one or the other internally is fine (we don't care what you do),
> but we want to see memcpy().  By the way, the documentation I found for
> ScsiPortMoveMemory() seems to indicate that it's memmove(), not memcpy().
> Mapping memcpy() to ScsiPortMoveMemory() is fine ... but you can't
> realiably go the other way.
[Atul] It's actually memcpy(),http://msdn.microsoft.com/en-us/library/ms805434.aspx

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